Q: How do you roll back a production deployment in under 5 minutes?
Blue/green: flip traffic back to blue. ArgoCD: argocd app rollback <app> --revision=<prev>. Helm: helm rollback <release>. Feature flags:...
#CI/CD #Additional CI/CD Scenarios #L2 #DevOps #Automation #Pipelines
🎙️ Candidate Opening & Architectural Context
""In enterprise CI/CD, you cannot rely on manual interventions; every rollback and promotion must be declarative. When addressing this question, I walk the interviewer through our production incident runbook: isolating the blast radius, checking diagnostic logs and metrics, and applying a safe fix.""
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🛠️ Production Runbook & Step-by-Step Resolution
1️⃣
Production Solution & Architecture
Blue/green: flip traffic back to blue. ArgoCD: argocd app rollback . Helm: helm rollback . Feature flags: disable the flag instantly.
💡 The Senior SRE Gold Nugget (Key Architectural Takeaway)
"Pro-Tip: Blue/green: flip traffic back to blue. ArgoCD: argocd app rollback --revision=. Helm: helm rollback . Feature flags: disable the ."
⚡ 60-Second Elevator Pitch Talking Points
- Immediate Triage: Blue/green: flip traffic back to blue. ArgoCD: argocd app rollback --revision=. Helm: helm rol
- Run targeted verification commands before modifying configuration.
- Automate permanent guardrails (CI check, alerts, IaC policy) to prevent recurrence.
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